These rings are designed for Surly OD cranks, but are compatible with other 5-bolt 94 BCD cranks. These rings feature the patent pending Drop-Stop asymmetrical tooth design for the best in wear life, mud clearance, and chain retention.

• Features Wolf Tooth's Drop-Stop tooth design for maximum chain retention
• Drop-Stop chainrings are designed for use with 1x9, 1x10, 1x11 and 1x12 drivetrains
• Compatible with all 10-, 11-, and 12-speed chains, with the exception of Shimano 12-speed chains
• Shimano 12-speed chains require the use of Wolf Tooth's Shimano 12-speed specific chainrings
• If using a 9-speed drivetrain, use a 10-speed chain, which will provide a tighter fit for better chain retention
• Made from 7075-T6 aluminum for long life
• Use of a clutch-style rear derailleur is recommended